CQ vs. CQ_VBR ... Very Interesting... - Page 28

kwag · #**541** 01-13-2003, 12:22 PM

Here's the first KDVD Version 2.0 Full D-1 sample. I predicted the size to fit three movies on one DVD(+-)R (Each video stream ~1.3GB ). So this is what the movies will look like, all on a single DVD-R. That's an average of ~6 hours for each DVD

http://www.kvcd.net/kdvd-v2-sample.m2v

That's using the BETA-1a "Notch" matrix, and setting spoilage to 0:0, as in all other templates, and SansGrip's Blockbuster "Noise" and GripFit with all bells and whistles

Script used:

Code:

LoadPlugin("C:\encoding\MPEG2DEC.dll")
LoadPlugin("C:\encoding\fluxsmooth.dll")
LoadPlugin("C:\encoding\GripFit_preview.dll")
LoadPlugin("C:\encoding\blockbuster.dll")
LoadPlugin("C:\encoding\legalclip.dll")
LoadPlugin("C:\encoding\sampler.dll")
LoadPlugin("C:\encoding\vobsub.dll")

Mpeg2Source("K:\COUNT_OF_MONTE_CRISTO\VIDEO_TS\count.d2v")
LegalClip()
vobsub("K:\COUNT_OF_MONTE_CRISTO\VIDEO_TS\VTS_01_0")
GripFit( source_anamorphic = true, dest_anamorphic=false, width=720, height=480, overscan=2) 
FluxSmooth()
Blockbuster(method="noise", variance=.3, seed=1)
LegalClip()

Sampler(length=24)
## MPEG size = ((Total frames/MovieTimeInMinutes)/24) * MPEG sample file size ##

With this, all I can say for my personal taste and convenience, is "Bye Bye DivX" when DVD media becomes more affordable

Edit: Sample re-uploaded. I had mistakenly encoded using "Normal" motion estimation, instead of "High quality"

-kwag

Jellygoose · #**542** 01-13-2003, 12:27 PM

@gonzopdx

where did you get those vobs from? isn't that LOTR 2 ? Is that available on DVD somewhere already??

SansGrip · #**543** 01-13-2003, 01:38 PM

I just finished encoding Death To Smoochy (new 352x480 template) at CQ 58.5. Target size was ~689mb, final size was ~648mb. I was able to bump the audio up from 112 to 160

.

kwag · #**544** 01-13-2003, 01:40 PM

Quote:

Originally Posted by SansGrip

I just finished encoding Death To Smoochy (new 352x480 template) at CQ 58.5. Target size was ~689mb, final size was ~648mb. I was able to bump the audio up from 112 to 160

.

How does it look

That's ~6% off right?

Edit: Was it using Predictor or manual calculation

-kwag

SansGrip · #**545** 01-13-2003, 01:44 PM

Quote:

Originally Posted by kwag

How does it look

It looks pretty good -- this is a hard movie to compress, lots of bright colours etc. and a 16:9 ratio.

Quote:

That's ~6% off right?

Yep, 6.3% or thereabouts. Too much. I think I'll reencode at 689 / 648 * 58.5 = 62.2 and see what I get...

SansGrip · #**546** 01-13-2003, 01:46 PM

Quote:

Originally Posted by kwag

Edit: Was it using Predictor or manual calculation

I used my own method, which was ~0.1% accurate before this encode

.

kwag · #**547** 01-13-2003, 01:54 PM

I'm going for a 528x480 full encode of "Count of Monte Cristo" in a little while. I'm doing this one with subs, to make prediction more complicated

. I just finished re-encoding the KDVD sample above, because I had set motion estimation to "Normal"

, so I was able to increase the CQ a little. So I'm uploading the KDVD sample again, and then encoding at 528x480 with KVCDx3. I'll post an x3 sample when I get my predicted CQ value in a little while.

-kwag

gonzopdx · #**548** 01-13-2003, 02:18 PM

Quote:

Originally Posted by kwag

Did you use prediction on that sample

Because I find it a little on the expensive side for 6.8MB and only 35 seconds. It should be less than ~3MB for that time

Or was this made to target 3 CD-Rs

I agree, 6 megs for 30 seconds was pretty big.. I did use prediction for 2 CD's -- fits PERFECT! 1h25m~ish on each CD, 128k audio. Maybe it's so big since it's a very high action scene? It looks GREAT though!

Quote:

Originally Posted by Jellygoose

where did you get those vobs from? isn't that LOTR 2 ? Is that available on DVD somewhere already??

Yes, it's LOTR2. It's from a DVD Screener -- the 4-disc SVCD has been floating around the net for the past week or so..

kwag · #**549** 01-13-2003, 03:19 PM

Here's the same sample I posted above, but done with KVCDx3 targeted for one CD-R: http://www.kvcd.net/kvcdx3-v2-sample.mpg
This is a better candidate for either 352x480, or 2 CDs at 528x480

-kwag

SansGrip · #**550** 01-13-2003, 03:24 PM

Quote:

Originally Posted by kwag

This is a better candidate for either 352x480, or 2 CDs at 528x480

That's what I found with Death To Smoochy -- even at 352x480 it's not ideal quality. Strange, really, considering it's less than 2 hours long

.

kwag · #**551** 01-13-2003, 03:39 PM

Quote:

Originally Posted by SansGrip

Quote:

Originally Posted by kwag

This is a better candidate for either 352x480, or 2 CDs at 528x480

That's what I found with Death To Smoochy -- even at 352x480 it's not ideal quality. Strange, really, considering it's less than 2 hours long

.

I guess some movies have some weird luma levels that chew up compression

But if it's a dark movie, where are we loosing compression

High spike noises on scene changes

AHA

, there you go SansGrip, time for a new analysis

A "Scene Transition Vacuum Cleaner" .dll

or properly, a "transition smoother "

-kwag

SansGrip · #**552** 01-13-2003, 03:51 PM

Quote:

Originally Posted by kwag

But if it's a dark movie, where are we loosing compression

I'm not sure, but I notice that a lot of very dark movies are hard to compress (e.g. Panic Room, Resident Evil).

Quote:

A "Scene Transition Vacuum Cleaner" .dll

Ah... I'm going to encode some movies first :P

.

Paul0889 · #**553** 01-13-2003, 04:12 PM

Kwag,
In the new KVCDx3 template download, shouldn't the new GOP be
1-24-2-1-24? In the new template, it's 1-5823-2-1-24

kwag · #**554** 01-13-2003, 04:47 PM

Quote:

Originally Posted by Paul0889

Kwag,
In the new KVCDx3 template download, shouldn't the new GOP be
1-24-2-1-24? In the new template, it's 1-5823-2-1-24

Q-29 here: http://www.kvcd.net/forum/viewtopic.php?p=326

Paul0889 · #**555** 01-13-2003, 05:05 PM

oh. thanks!

Paul0889 · #**556** 01-13-2003, 05:06 PM

oh. thanks! By the way, finished Resident Evil this morning, looks GREAT!!!! A lot better than before with the old kvcdx2 template. Very impressed with the new templates.

kwag · #**557** 01-13-2003, 05:21 PM

Quote:

Originally Posted by Paul0889

oh. thanks! By the way, finished Resident Evil this morning, looks GREAT!!!! A lot better than before with the old kvcdx2 template. Very impressed with the new templates.

SansGrip · #**558** 01-13-2003, 07:11 PM

Quote:

Originally Posted by SansGrip

I think I'll reencode at 689 / 648 * 58.5 = 62.2 and see what I get...

I got 650mb, up from 648mb. That's a 2mb gain from a 4-point CQ increase, over the entire movie. Something's not right...

kwag · #**559** 01-13-2003, 07:54 PM

My machine crashed

M$crap explorer did something weird, and made my machine perform like a 1.7Mhz Atari 800

That's what I get for leaving XP running a week without a restart

I guess MsBlows Uptimes are still way WAY lower than any U*ix variant

Back to encode again

-kwag

kwag · #**560** 01-14-2003, 12:20 AM

Hey guys, do you remember the original "The Green Mile" samples done with CQ_VBR and the original KVCD matrix

Well look again at the quality for 180 minutes on one CD-R with the new "Notch" matrix and CQ: http://www.kvcd.net/mile-v2-sample.mpg

-kwag

Edit: I just compared the sample above to a sample encoded with the "Standard" TMPEG VCD template, and there's barely any difference between the two

. I wonder if the "LBR" definition should really be ~200 minutes, because at 180, it looks just like a VCD

Any comments on this